The D90 has a built in preamp.
In perfect condition. The plastic is still on the front screen. I used the front buttons about ten times as I used the power switch on the rear to turn it off and on. The power cord is still in the box. Nine months old with limited use.
SOTA performance with extremely low distortion.
See review
https://www.audiosciencereview.com/...ds/topping-d90-balanced-usb-dac-review.10519/
Price includes shipping and insurance to CONUS. $550.00
In perfect condition. The plastic is still on the front screen. I used the front buttons about ten times as I used the power switch on the rear to turn it off and on. The power cord is still in the box. Nine months old with limited use.
SOTA performance with extremely low distortion.
See review
https://www.audiosciencereview.com/...ds/topping-d90-balanced-usb-dac-review.10519/
Price includes shipping and insurance to CONUS. $550.00